首页> 美国政府科技报告 >Coefficient of Linear Expansion of Massive Concrete at a Negative Temperature (Koeffitsient Lineinogo Rasshireniia Massivnogo Betona pri Otritsatel'noi Temperature).

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Coefficient of Linear Expansion of Massive Concrete at a Negative Temperature (Koeffitsient Lineinogo Rasshireniia Massivnogo Betona pri Otritsatel'noi Temperature).

机译：大体积混凝土在负温度下的线膨胀系数（Koeffitsient Lineinogo Rasshireniia massivnogo Betona pri Otritsatel'noi Temperature）。

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The article presents the results of full-scale extensometric measurements of free thermal deformations of concrete in 41 sections of the Bratsk hydroelectric station dam at a negative temperature. It is shown that the coefficient of linear expansion of frozen concrete is 1.6 times greater, on the average, than at a positive temperature, and that there is a relationship between these coefficients and the strength of the concrete. Melting of the concrete is accompanied by the appearance of residual deformation of elongation. Tests specially conducted on samples 10x10x40 cm in size of different composition of the concrete yielded similar results. Data are provided on the effect of a change in the value of the coefficient of linear expansion of the frozen concrete on opening on construction joints and cracks as well as the stress state of the concrete. (Author)

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作者
Eydel'man, S. Y.; Durcheva, V. N.;
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年度 1976
页码 1-24
总页数 24
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Concrete; Thermal expansion; Expansion joints; Coefficients; Linearity; Cracks; Cold weather tests; Extensometers; Deformation; Dams; Electric power plants; Residual stress; USSR; Translations;

机译：混凝土;热膨胀;膨胀节;系数;线性;裂缝;寒冷天气试验;引伸计;变形;大坝;电厂;残余应力;苏联;翻译;

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Coefficient of Linear Expansion of Massive Concrete at a Negative Temperature (Koeffitsient Lineinogo Rasshireniia Massivnogo Betona pri Otritsatel'noi Temperature).

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